Bazele chimice ale anatomiei si fiziologiei Flashcards

1
Q

Atomii:

A

untitatile fundamentale din care sunt alcatuite elementele chimice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Moleculele:

A

unitatile de baza ale compusilor chimice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Elementele sunt compuse din:

A

atomi(nu poate fi degradat in subunnitati mai mici fara a si pierde proprietatile elementare

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Atomii sunt alcatuiti din_____ fiind inconjurati de :

A

protoni si neutroni(nucleari)///electroni

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Neutronul nu este incarcat electric+are ac masa ca si protonul

A

==p+n==>nucleul (incarcat pozitiv)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Nr atomic:

A

nr de protoni dintr un atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Nr de masa(masa atomica)

A

suma protonilor si neutronilor dintr un atom

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Atomii sunt cei mai stabili atunci cand:

A

PE STRATUL EXTERN SE AFLA nr complet de electroni(configuratie de dublet( H & He) sau octet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Atomul tinde sa ____ pentru a si forma configuratia stabila

A

primeasca sau sa cedeze electroni de pe ultimul strat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Un element cu atomi ai caror str externe sunt complete este :

A

un element inert==>NU INTRA IN REACTIE CU ALTI ATOMI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Un element cu atomi ai caror str externe sunt complete este :

A

un element inert==>NU INTRA IN REACTIE CU ALTI ATOMI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Cand o reactie se finalizeaza cu pierdere de e- se numeste:

A

OXIDARE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Cand o reactie are ca rezultat primirea de e- :

A

Reducere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Aceste reactii au loc impreuna si se numesc reactii de :

A

oxido-reducere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Atomii contrin ac nr de p+ si e-:

A

neincarcati(neutri)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Cand pierd sau primesc e- se incarca si devin :

A

ioni

17
Q

Nr de protoni pt toti atomii unui element este ac,nr de neutroni variaza:

A

==IZOTOPI(AC NR ATOMIC DAR NR DE MASA DIFF)